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Asian Journal of Agriculture and Development (AJAD) - Call for papers!

Mass Culture of Arthrospira platensis Utilizing Aerobically Digested Palm Oil Mill Effluent (ADPOME)

(Malaysia), Master of Science in Chemistry (Universiti Putra Malaysia)

Abstract:

 

A series of experiment was conducted to develop a mass culture technique of Arthrospira plantensis, a blue-green alga, in freshwater and brackish water (15 ppt) using different concentration (1, 2, ,3 ,4, and 5%) of aerobically digested palm oil mill effluent (ADPOME) in two trials. The cell growth, chlorophyll a, total protein, carbohydrate, lipid contents, and fatty acid profile were also studied. Physiochochemical water quality parameter(temperature,dissolve oxygen, pH,salinity, surface irradiance, underwater irradiance, optical density, total ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen, phosphate phosphorus, total phosphorus chemical oxygen  demand, biochemical oxygen demand and total dissolved organic carbon) were also measured throughout the study. 

Algal cell growth was best in 4 percent ADPOME both in the freshwater and brackish water conditions and culture cycles with mean cell dry weight of 706.98±285.52 and 479.79±204.53       mg L-1 , respectively. 

A. plantensis cultivated in 1 percent ADPOME yielded the highest total protein content in freshwater and brackish water from both culture trials at 69.60±1.09 and 58.71±3.73 percent dry weight     (p < .05) when compared with other treatments. The highest total lipids content was observed in A. platensis cultivated in 5 percent ADPOME from both freshwater and brackish water, and culture trials at 7.03±0.13 and 10.08±0.01, respectively. Similarly, the maximum total carbohydrate content was also observed when. A. platensis culture in 4 percent ADPOME had the most diversefatty acid composition from the both freshwater and brackish water and culture trials.

Finally, the results of the physiological water quality from different concentrations of ADPOME both in the freshwater and brackish water indicated that A. platensis has the ability to bioremediate organic rich palm oil mill effluent by reducing the retention time from three or four weeks to one week and improve the general water quality of the effluent